Hi Jeff,
Yes you can convert Pa4X styles to Yamaha.
First you need to Export your style as a midi from Pa4X.
Hi Jeff , unfortunately that is the problem, you basically need access to a Pa4x so that you can save / export style as a midi file.
I’ve never bothered trying to convert Korg to Yamaha. User styles might be ok , but factory styles might be a problem.
Korg variations can utilise up to 6cv’s per style track ( don’t think I’ve ever found a style that uses all 6, but have come across some that use 3 to 4) Yamaha I think only 1cv in user styles maybe 2 in factory styles. So style would have to be dumbed midi file
Guitar mode tracks might also cause problems. Can’t remember if when exported as a midifile it exported the notes as a “guitar mode track” ie single notes that triggered strums and chords in the Pa4x, or whether it exported as a track with a complete set of notes that formed a chord.
You’d also have incorrect drum mapping. Korg pa3x/4x/5x. Have xg drumkits, but they’re not used in factory styles.
On the whole , I think be far harder to convert Korg factory styles to Yamaha than vice versa.